JP2002201884A - Swing preventive device of expandable gate door and overturning preventive device of expandable gate door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swing preventive device of an expandable gate door capable of easily and surely making the swing prevention and a release by opening-closing of a gate door body without requiring no direct operation by manpower, and an overturning preventive device of the expandable gate door capable of the overturning prevention and a release. SOLUTION: Swing preventive wheels 17 for rolling on the ground surface 1 side are vertically movably arranged on the lower side of the gate door body 7 for expanding and contracting in the opening-closing direction along the ground surface 1 side. A swing preventive engaging tool 19 is arranged on the ground surface 1 side for disengageably engaging the swing preventive wheels 17 in the opening-closing direction of the gate door body 7 when the gate door body 7 is put in a prescribed state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic gate anti-sway device for preventing the gate main body from oscillating, and to a telescopic gate anti-fall device for preventing the gate main body from falling inward and outward.

[0002]

2. Description of the Related Art There are pantograph type, horizontal link type, and other types of telescopic gates for opening and closing entrances of buildings or garages. In this type of telescopic gate, a drop bar device is provided at an appropriate position in the middle part of the gate body, and even when the gate body is extended and the entrance is closed, the middle part of the gate body swings inward and outward, The gate body is prevented from falling inward or outward.

[0003] That is, this dropping rod device is provided with a dropping rod which can be moved up and down provided on a vertical rail or the like in the middle of a gate body, and a dropout provided on the ground side corresponding to the dropping rod. The rod is engaged with the pit in such a manner as to be freely detachable from the upper side, thereby preventing the gate body from swinging inward and outward and the gate body from falling inward and outward.

In a conventional drop rod device, usually, a knob or the like is engaged with an engaging portion such as a vertical rail, or the drop rod is urged in a rising direction by a spring to hold the drop rod in a raised position. In advance, if necessary, a knob or the like is operated to release the drop bar at the raised position, and then the drop bar is lowered to drop its lower end into the drop hole.

[0005]

The conventional dropper device has a drawback that its handling is very complicated. That is, conventionally, the drop bar is operated in the vertical direction so as to be disengaged from the drop hole. Therefore, when opening and closing the gate body, it is necessary to always operate the drop bar with a knob or the like.

[0006] In addition, when dropping a pit into a pit, the lower end of the pit must be aligned with the pit. However, it is difficult to match the two simply by extending the gate body to the closed state. When the positions of the two are displaced, it is necessary to move the gate body side little by little and align the lower end of the drop rod with the drop hole.

[0007] Therefore, conventionally, since the handling of the drop bar is very complicated, even when the gate body is extended and the entrance is closed, the middle portion of the gate body may be dropped and left without being locked by the bar device. In many cases, there is a fear that the gate main body may be laterally swayed inward or outward or fall down inward or outwardly when subjected to wind pressure such as strong wind, and may be damaged.

The present invention has been made in view of the above-mentioned conventional problems, and does not require direct operation by hand, and can easily and reliably stop and release the swing gate by opening and closing the gate body. An object of the present invention is to provide a fall prevention device for a telescopic gate that can prevent and release a fall.

[0009]

According to the present invention, a steady rest wheel 17 for rolling on the ground 1 side is provided below the gate body 7 which expands and contracts in the opening and closing direction along the ground 1 side, and is vertically movable. On the ground 1 side, there is provided a steady rest engaging member 19 with which the steady rest wheel 17 engages in the opening and closing direction of the gate main body 7 when the gate main body 7 is in a predetermined state.

A fall prevention wheel 60 for rolling on the ground 1 side is provided below the gate body 7 having one end fixed and extending and contracting in the opening and closing direction along the ground 1 side. On one side, when the gate body 7 is in a predetermined state, the overturn prevention wheel 60 is removably engaged in the opening and closing direction of the gate body 7 to prevent the inside and outside of the gate body 7 from overturning. This is provided with an engagement member 61 for prevention.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 illustrate a first embodiment in which the present invention is applied to a hanging telescopic gate. As shown in FIG. 1, the suspension type telescopic gate includes a suspension column 2 and a door stop column 3 erected on the ground 1 at a predetermined interval, and a guide erected between the columns 2 and 3. A rail 4 and a gate body 7 which is arranged below the guide rail 4 so as to be extendable and contractible in the opening and closing direction and is openably and closably suspended via traveling units 5 and 6 on the guide rail 4 side.
And

The gate body 7 has a plurality of, for example, two, doors 9 and 10 connected in the opening and closing direction via an intermediate frame 8, and the door 9 on the hanging side is opposite to the intermediate frame 8. A door stop side frame 12 is provided on the side opposite to the intermediate frame 8 of the door body 10 on the hanging side. The hanging side frame 11 is fixed to the hanging column 2, and the intermediate frame 8 and the door stop side frame 12 are connected to the traveling units 5, 6 on the guide rail 4 side.
Is fixed in a hanging manner. The gate body 7 may not have the intermediate frame 8.

Each of the doors 9 and 10 includes a plurality of vertical frame members 13 arranged at predetermined intervals in the opening and closing direction, and a pantograph mechanism 14 to which the vertical frame members 13 are connected. It is configured to be stretchable. Both ends of each pantograph mechanism 14 are independently connected to the intermediate frame 8 and the hanging side frame 11 or the door stop side frame 12 for each of the doors 9 and 10 independently. Therefore, each of the door bodies 9 and 10 can be separately expanded and contracted when the gate body 7 is opened and closed.

The vertical frame member 13 is, as shown in FIG.
A pair of inner and outer vertical rails 15 are provided at predetermined intervals in the inner and outer directions and are connected at both upper and lower ends by connecting members 20a. A pantograph mechanism 14 is provided between the vertical rails 15. The door stop side frame 12 is provided with a locking means (not shown) for locking in a state of contact with the door stop support 3.
Handles 16 and the like for opening and closing operations are provided on both inner and outer sides.

In the middle of the opening and closing direction of the gate body 7, one or a plurality of steady wheels 17 are provided so as to be vertically movable in accordance with the length thereof. For example, in this embodiment, a support member 18 provided with a steadying wheel 17 at the lower end side is provided at a substantially center of the door bodies 9 and 10 in the expansion and contraction direction so as to be vertically movable. A steady rest engaging member 19 is buried in the ground 1 side so as to correspond to the steady rest wheel 17 when the gate body 7 is extended to the closed state.

As shown in FIGS. 2 to 4, the support member 18 has a sliding rod 21 supported vertically below a vertical bar 15 of the vertical frame member 13 via a guide member 20. An axle 23 is detachably provided between the lower ends of the sliding rods 21 inward and outward via an attachment 22, and the steady rest wheel 17 is rotatably attached to the axle 23.

The guide member 20 has a substantially U-shaped cross section integrally provided with a pair of guide holding portions 24 recessed to the outside and a connecting portion 25 connecting the guide holding portions 24 together. A round bar-shaped or other sliding bar 21 is vertically slidably held between the guide holding portions 24, and a connecting portion 25 is fixed to the vertical rail 15. The steady rest wheel 17 is freely rollable along the ground 1 side, and is disposed substantially at the center of the axle 23.
The sliding rod 21, the mounting 22, the axle 23, and the steady rest 17 are removably connected so that they can be individually disassembled.

As shown in FIGS. 2 to 4, the steady rest engaging member 19 has an engaging portion 26 formed along the opening / closing direction. The main body 7 is adapted to engage with the opening and closing direction so as to be freely detachable. The steady rest engaging device 19 integrally includes a flat plate portion 27 provided substantially flush with the ground 1 and an engaging portion 26 formed concavely below the flat plate portion 27. ing. In the center of the engaging portion 26 in the opening and closing direction, a regulating portion 28 for regulating the movement of the steady rest wheel 17 in and out is provided substantially in parallel at a predetermined interval, and both sides of the regulating portion 28 in the opening and closing direction are provided. In addition, a guide portion 29 for guiding the steady rest wheel 17 between the regulating portions 28 is formed so as to expand toward the outside in the opening / closing direction, and between the guide portions 29, an inclined guide path 30 whose outside in the opening / closing direction is higher is provided. Is formed.

A drop bar 31 is provided on the intermediate frame 8 so as to be vertically movable.
Is provided. On the ground 1 side, a drop bar engaging tool 32 is provided, on which a drop bar 31 is detachably engaged from above, and on the guide rail 4 side, the drop bar 31 is dropped and can be freely disengaged from the rod engaging tool 32. Drop bar operating means 33 to be operated are respectively provided so as to correspond to the drop bar 31 when the gate body 7 is extended to the closed state, and the drop bar operating means 33 is linked to the opening and closing of the gate body 7 so as to correspond to the drop bar 31. And is operated to be disengaged from the rod engaging tool 32.

[0020] In the hanging telescopic gate of the above construction,
When the gate body 7 in the contracted state is extended to close the space between the suspension base 2 and the door stop support 3, the handle 16 of the door stop side frame 12 is gripped and moved to the door stop support 3 side.
Then, of the two door bodies 9, 10 of the gate body 7, first, the door body 10 on the door stop support 3 side extends, and then the intermediate frame 8 moves to extend the door body 9 on the suspension base support 2 side. The gate body 7
The whole is in the extended state.

In this case, the steady rest wheel 17 between the doors 9 and 10 rolls along the ground 1. When each steady rest wheel 17 approaches each steady rest engaging member 19, the steady rest wheel 17 is guided between the regulating portions 28 by a pair of guide portions 29 while rolling, and the door stop side frame 12 is moved. Each of the steady rest wheels 17
Is located between the pair of regulating portions 28 and engages with the engaging portion 26 of the steady rest engaging member 19. For this reason, simply by operating the gate body 7 in the closing direction, the steady rest wheel 17 is engaged with the engaging portion 26 of the steady rest engaging member 19, and the gate body 7 is easily and reliably operated without any special manual operation. 7 can be rested.

When the gate body 7 is operated in the opening direction when the door is opened, the steady rest wheel 17 is disengaged from the engaging portion 26 of the steady rest engaging member 19 while rolling. 19 can be disengaged from the steady rest wheel 17.
Therefore, the steady rest of the gate body 7 can be easily and reliably released without performing any special manual operation as described above.

The steady rest wheel 17 can be moved up and down on the doors 9 and 10 via the support member 18 and moves while following the ups and downs of the ground 1 when the gate body 7 is opened and closed. Even if there is undulation or inclination, the steady rest wheel 17 can be disengaged from the steady rest engaging member 19 without being affected by the influence, and the engaging portion 26 of the steady rest engaging member 19 is grounded. Even if it is formed in a recessed shape lower than 1, the steady rest wheel 17 can be reliably engaged with and disengaged from the engaging portion 26.

In addition, the steady rest wheel 1 which rolls on the ground 1
7, the resistance can be reduced compared to the case of using a member that slides on the ground 1 in spite of the structure that moves while following the ground 1, and the gate body 7 can be opened and closed. There is no significant effect on

The support member 18 has a pair of sliding rods 21 arranged on the inner and outer sides of the vertical frame member 13, and the steady rest wheel 17 is disposed between the sliding rods 21 via an axle 23.
Since there is a predetermined distance between the two sliding rods 21, even if there is some undulation or the like on the ground 1 side, the steady rest wheel 17 is less likely to swing inward and outward, and rolls on the ground 1 in a stable state. Can be done.

When a plurality of steady rest wheels 17 are provided in the middle of the gate body 7 such as a steady rest wheel 17 provided on each of the doors 9 and 10, when the gate body 7 is opened and closed, the door stop support 3 side Is passed through the steady rest engaging tool 19 on the side of the suspension support post 2. However, the steady rest engaging member 19 has guide portions 29 on both sides in the opening and closing direction.
Since the inclined guide path 30 is provided, the steady rest engaging device 19 is provided.
Can easily pass through.

When the gate body 7 is extended to the closed state, the drop bar 31 is engaged with the drop bar engaging tool 32 by the drop bar operating means 33. As a result, it is possible to prevent the intermediate frame 8 from running inward and outward. When the intermediate frame 8 moves to the hanging column 2 side, the drop rod operating means 33 raises the drop rod 31 to disengage from the drop rod engaging tool 32 and release the steady rest.

Instead of the drop bar 31 or the like, it is also possible to provide a steady rest wheel 17 on the intermediate frame 8 side and a steady rest engaging member 19 on the ground 1 side. In this case, there is no need to provide the drop rod operating means 33 or the like on the guide rail 4 side, so that the structure can be simplified and the size can be reduced.

FIGS. 5 to 9 illustrate a second embodiment in which the present invention is applied to a horizontal link type folding telescopic gate. As shown in FIGS. 5 and 6, the folding telescopic gate is arranged so as to be freely foldable between the hanging support post 2 and the door stop support 3, and between the two supports 2, 3, and one end side is pivotally connected to the hanging support post 2. Gate body 7 provided.

The gate body 7 includes a plurality of doors 35 arranged in the opening / closing direction, and short doors 36 and 37 on the hanging side and the door stop side. It is connected to the suspension base 2 via a base hinge 38.
The short door unit 37 on the door stop side is provided with a locking frame hinge 39a.
Is pivotally attached to the locking hook frame 40a through the opening. The locking frame 40a can be locked by contacting the locking receiving frame 41a of the door stop support 3.

Each of the doors 35 to 37 includes a door surface member 34, a pair of upper and lower inner links 39 disposed on both upper and lower sides of the door surface member 34, and a pair of upper and lower members disposed on the outer side of the inner link 39 in the vertical direction. And an outer link 40, and the inner link 39 and the outer link 40 are pivotally connected by a substantially central pivot 41.

Each adjacent door unit 35 has an inner link 39 of one door unit 35 such that the inner link 39 and the outer link 40 rotate around the pivot 41 in the opposite direction during expansion and contraction.
And the outer link 40 of the other door unit 35 and the short portions of the outer link 40 of the one door unit 35 and the inner link 39 of the other door unit 35 are pivotally connected by a vertical hinge 42 to bend freely. ing. The gate body 7 is freely expandable and contractible between an extended state in which each door unit 35 is substantially linear and a folded state in which each door unit 35 overlaps. A wheel 43 is provided in the middle of the gate body 7 at an end of the outer link 40 at an appropriate lower position.

At the middle lower part of the gate body 7 in the center of expansion or contraction or in the vicinity of the center, a steadying wheel 17 is provided via a supporting member 18 which can move up and down with respect to a pivot 41. When the gate body 7 is extended to close the space between the three, the steady rest engaging member 19 is provided on the ground 1 side at a position corresponding to the steady rest wheel 17.

That is, the pivot 41 supporting the support member 18
As shown in FIGS. 7 to 9, a cylindrical shape or another cylindrical shape is provided so as to be rotatable around the axis with respect to the inner link 39 and the outer link 40, and the pivot 41 moves up and down. The support member 18 is inserted only freely. The pivot 41 and the support member 18 are provided with a vertically long slot 44 formed in the pivot 41 and a pin 45 on the support member 18 side that is vertically movably inserted through the long hole 44. 46
Thus, the relative rotation between the two is restricted.

As shown in FIGS. 7 to 9, between the pivot 41 supporting the support member 18 and the inner link 39 and the outer link 40, the direction of the steady rest wheel 17 is restricted in the opening and closing direction of the gate body 7. Direction restricting means 47 is provided.
The direction regulating means 47 includes a fixed link 48 fixed to the pivot 41 substantially in parallel with the steady rest wheel 17 between the inner link 39 and the lower link, and opening and closing of the gate body 7 passing on the pivot 41 in plan view. And a pair of regulating links 49 and 50 arranged substantially symmetrically with respect to the center line in the direction.

An elongated hole 51 is formed in the fixed link 48 along the center line.
A pin 52 for connecting the distal ends of the members 9 and 50 is slidably fitted. The base side of the regulation link 49 is the inside link 39
The base side of the regulating link 50 is pivotally connected to the outer link 40 by pivot pins 53 and 54.

Note that the steady rest wheel 17 is supported by a support member 18.
The axle 2 is connected to the lower end of the
3 rotatably supported. Direction regulating means 47
Is disposed between the lower inner link 39 and the outer link 40, and is substantially within the width of the inner link 39 and the outer link 40. When the gate body 7 is folded, the fixed link 48 is connected to the pivot 4 of the adjacent door unit 35.
The length does not interfere with 1.

As described above, even in the horizontal link type folding telescopic gate, it is possible to provide the steady rest wheel 17 via the support member 18 in the middle of the gate main body 7 by using the pivot 41 of the door unit 35 or the like. It can be implemented in the same manner as in the first embodiment. Also, in the case of providing the steady rest wheel 17 using the pivot 41, the direction of the steady rest wheel 17 is made to coincide with the expansion and contraction direction of the gate body 7 by providing the direction regulating means 47, and the swing of the steady rest wheel 17 is performed. Can be easily prevented.

FIGS. 10 to 12 show a third embodiment in which the present invention is applied to a taxiing type telescopic gate. As shown in FIG. 10, the ground-operated telescopic gate is arranged so as to be extendable and retractable in the opening and closing direction between the suspension column 2 and the door stop column 3 and both columns 2 and 3, and one end thereof is connected to the suspension column 2 as shown in FIG. And a gate body 7 fixed to the main body.

The gate body 7 includes a plurality of vertical frame members 13 arranged at predetermined intervals in the opening and closing direction, and a pantograph mechanism 14 to which the vertical frame members 13 are connected. It is configured.

The vertical frame member 13 on the hanging column 2 is fixed to the hanging column 2, and the door frame 3 on the door column 3 is provided with a door stop frame 12. The door stop side frame 12 is provided with locking means 57 for locking in a state of contact with the door stop support 3, and handles 16 for opening and closing are provided on both inside and outside thereof.

As shown in FIG. 11, the vertical frame member 13 includes a pair of inner and outer vertical rails 1 arranged at predetermined intervals in the inward and outward directions.
5 and a connecting member 2 for connecting both upper and lower ends of the vertical rails 15.
0a, and the pantograph mechanism 1 between the inner and outer vertical rails 15
4 are arranged.

A traveling wheel 58 is provided at a predetermined position in the opening / closing direction of the gate body 7, for example, at both ends in the opening / closing direction and substantially at the center of the vertical frame member 13. The traveling wheels 58
It is mounted via a mounting tool 59 so as to project outward with respect to the vertical frame member 13. The traveling wheel 58 is a caster type and is attached to the mounting tool 59 so as to be rotatable about a vertical axis.

In the middle of the opening and closing direction of the gate body 7, one or a plurality of overturn prevention wheels 60 are provided so as to be vertically movable. The fall prevention wheel 60 is, for example, a traveling wheel 58.
Two are provided in the opening / closing direction at a substantially central position between them. The fall prevention wheel 60 is disposed at a lower side between the inner and outer vertical rails 15 and substantially in the center thereof.

The overturn prevention wheel 60 is mounted on the lower end side of the support member 18, and the support member 18 is provided on the vertical frame member 13 so as to be vertically movable. Also, on the ground 1 side, when the gate body 7 is extended to the closed state, a fall prevention engaging tool 61 is embedded so as to correspond to the fall prevention wheel 60.

As shown in FIGS. 11 and 12, the supporting member 18 has a sliding rod 21 which is supported by a guide member 20 provided inside and outside the vertical rail 15 so as to be vertically movable. An attachment 22 is provided on the lower end side of the moving rod 21. The inner and outer attachments 22 are provided with an inner and outer axle 23 so as to be detachable, and a fall prevention wheel 60 is rotatably mounted on the axle 23.

The guide member 20 includes a pair of guide holding portions 24 for holding the sliding rod 21 so as to be vertically movable, and a pair of the guide holding portions 2.
And a connecting portion 25 connecting the connecting portions 4 to each other. The connecting portion 25 is mounted on the side of the connecting portion 20a inside the vertical rail 15 with screws or the like. The overturn prevention wheel 60 is mounted substantially at the center of the axle 23, and rolls along the ground 1 in the opening and closing direction. As shown in FIGS. An opening / closing direction engaging portion 26 is provided, and the overturn prevention wheel 60 is engaged with the engaging portion 26 in the opening / closing direction of the gate body 7 so as to be freely detachable.

The overturn prevention engaging member 61 includes a flat portion 27 provided substantially flush with the ground 1, and an engaging portion 26 formed concavely below the flat portion 27. Is provided integrally. In the engaging portion 26, a contact portion 62 is provided in the center of the overturn prevention engaging member 61 in the opening and closing direction, which is in parallel with the overturn prevention wheel 60 to prevent the gate main body 7 from overturning.

The contact portions 62 are arranged at predetermined intervals in the inward and outward directions, and when the gate body 7 is inclined inward and outward, that is, when the overturning prevention wheel 60 in the engaging portion 26 is inward and outward. When inclined, the inner and outer sides of the fall prevention wheel 60 abut on the abutment portions 62, respectively.

On both sides of the contact portion 62 in the opening and closing direction, a guide portion 29 for guiding the overturn prevention wheel 60 between the contact portions 62 is formed so as to expand toward the outside in the opening and closing direction. In between, the inclined guideway 3 where the outside in the opening and closing direction becomes higher
0 is formed.

In the telescopic gate for taxi with the above configuration,
When the gate body 7 in the contracted state is extended to close the space between the suspension base 2 and the door stop support 3, the handle 16 of the door stop side frame 12 is grasped and moved to the door stop support 3 side.
Then, the gate body 7 is extended toward the door stop support 3 side, and is in an extended state.

In this case, the fall prevention wheel 60 in the middle of the gate body 7 rolls along the ground 1. And when each overturn prevention wheel 60 approaches each overturn prevention engagement tool 61,
The overturn prevention wheel 60 is rolled while the pair of guide portions 2
9 guides between the abutment portions 62 and the door stop side frame 1
When 2 comes into contact with the door stop support 3, each overturn prevention wheel 60 is located between the pair of abutment portions 62 and engages with the engagement portion 26 of the overturn prevention engagement tool 61. Therefore, the fall prevention wheel 60 can be engaged with the engagement portion 26 of the fall prevention engagement tool 61 simply by operating the gate body 77 in the closing direction.

When the gate body 7 is in the extended state, for example, when a wind pressure such as a strong wind acts inward and outward, the fall prevention wheels 6
Since 0 is in contact with the contact portion 62 of the fall prevention engagement tool 61, the fall of the gate body 7 can be easily and reliably prevented without performing any special manual operation.

When opening the space between the columns, the gate body 7
Is operated in the opening direction, the fall-prevention wheel 60 is disengaged from the engaging portion 26 of the fall-prevention engagement member 61 while rolling, and the fall-prevention wheel 60 with respect to the fall prevention engagement member 61 is rotated.
Can be released. Therefore, the fall prevention of the gate main body 7 can be easily and reliably released without performing any special manual operation as described above.

The fall prevention wheel 60 can be moved up and down on the gate body 7 via the support member 18 and moves while following the ups and downs on the ground 1 side when the gates 7 are opened and closed. Or, even if there is an inclination or the like, the fall prevention wheel 60 can be disengaged from the fall prevention engagement member 61 without being affected by the inclination.
Even if the engaging portion 26 is configured to be recessed below the ground 1,
The fall prevention wheel 60 can be reliably disengaged from the engagement portion 26.

FIGS. 13 to 16 illustrate a fourth embodiment in which the present invention is applied to a taxiing type telescopic gate. In this ground-movable telescopic gate, a hanging side frame 11 is provided on the hanging column 2 side of the gate body 7, and the hanging frame 11 is rotatably mounted on the hanging column 2 via the hinge 63. The overturn prevention wheel 60 is of a caster type.

As shown in FIG. 13, the gate main body 7 attaches the vertical frame member 13 on the suspension base column 2 side to the suspension base frame 11,
The hanging side frame 11 is attached to the hanging column 2 so as to be rotatable around a hinge 63. In the middle of the opening / closing direction of the gate body 7, two falling prevention wheels 6 are provided at intervals in the opening / closing direction.
0 is provided to be able to move up and down.

The fall prevention wheel 60 is mounted on the lower end side of the support member 18, and the support member 18 is provided on the connecting member 20a so as to be vertically movable and rotatable. The support member 18 is
As shown in FIGS. 14 to 16, the sliding rod 2 penetrating the connecting member 20 a in the vertical direction substantially at the center of the connecting member 20 a in the inside and outside directions
1 is provided on the lower end side of the sliding rod
A mounting tool 22 for mounting the “0” is provided.

The sliding bar 21 is held by a guide tube 64 that penetrates the connecting member 20a in the vertical direction so as to be vertically movable and rotatable about a vertical axis. The axle 2 is attached to the fixture 22.
A fall-preventing wheel 60 is rotatably mounted via the wheel 3.

The axle 23 of the overturn prevention wheel 60 and the sliding rod 2
1 is separated in the horizontal direction, when the gate body 7 expands and contracts in the opening and closing direction, or when it turns around the hinge 63,
The overturn prevention wheel 60 rotates around its axis via the slide bar 21 and rolls on the ground 1 along the traveling direction.

As described above, even in the ground-travel type telescopic gate in which the gate body 7 is rotatably supported around the hinge 63, the connecting member 20a of the vertical frame member 13 and the like are used, so that the middle of the gate body 7 is provided. Can be provided with a fall prevention wheel 60 via the support member 18 and can be carried out in the same manner as in the third embodiment.

The overturn prevention wheel 60 and the overturn prevention engagement member 61 of the third and fourth embodiments are the first and second overturn prevention engagement members.
Steadying wheel 17 and steadying engaging device 19 of the embodiment
It is needless to say that the swinging of the inside and outside of the gate body 7 can be prevented in the same manner as described above. The traveling wheels 58 are connected to the gate body 7.
When the size in the opening / closing direction is small, it may not be provided.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to these embodiments. In the embodiment, a case in which the present invention is applied to a hanging telescopic gate, a ground traveling telescopic gate, and a horizontal link folding telescopic gate is exemplified. However, the present invention can be similarly applied to other types of telescopic gates. In addition, the present invention can be similarly implemented with a telescopic gate for a sloped ground installed on a sloped ground.

In the case of the first embodiment, the support member 18 for supporting the steady rest wheel 17 or the fall prevention wheel 60 so as to be vertically movable with respect to the gate main body 7 is provided by the sliding rod 21 thereof.
May be slidably inserted in the vertical direction inside each vertical rail 15 of the vertical frame member 13. In the case of the third embodiment, the sliding rod 21 is inserted into each vertical rail 15 of the vertical frame member 13. 15 may be slidably inserted in the vertical direction outside. Further, for example, the outer support member 18 may be provided inside the vertical bar 15 and the inner support member 18 may be provided outside the vertical bar 15.

The steady rest wheel 17, the steady rest engaging member 19
Is, when the gate body 7 is contracted to the hanging support 2 side,
The gate body 7 may be provided to prevent the swing of the gate body 7. In that case, the number of the steady rest engaging members 19 is larger than the number of the steady rest wheels 17. Therefore, the number of the steady rest wheels 17 and the steady rest engaging members 19 need not be the same, and when the gate main body 7 is in a predetermined state, the steady rest wheels 1 on the side of the gate main body 7 are set.
It suffices if there is a steady rest engagement tool 19 on the ground 1 side so as to correspond to FIG. Also, the fall prevention wheel 60 and the fall prevention engagement tool 61 may be provided so as to prevent the fall of the gate body 7 when the gate body 7 is similarly contracted to the hanging column 2 side.

The steady rest wheel 17 and the overturn prevention wheel 60
Is preferably provided substantially at the center of the width of the gate body 7 in the inward and outward directions, but is not necessarily required to be at the center.
In consideration of the structure, design, and other relations, it is also possible to displace inward or outward in the inward and outward directions.

When the width of the gate body 7 in the inward and outward directions is large, a plurality of anti-sway wheels 17 or overturning wheels 17 or overturning wheels are provided on both sides in the inward and outward directions. A prevention wheel 60 may be provided. Of course, a plurality of steady rest wheels 17 can be provided in the direction of expansion and contraction of the gate body 7.

The steady rest engagement member 19 or the overturn prevention engagement member 61 has a structure in which the engagement portion 26 is recessed below the ground 1, but it does not obstruct the passage or the like. In this case, the engaging portion 26 may be provided so as to protrude above the ground 1.

Further, when the distance between the lower end of the gate body 7 and the ground 1 is small, or when the amount of vertical movement of the anti-swing wheel 17 or the anti-falling wheel 60 is small, the anti-sway wheel 17 or It is also possible to provide both ends of the axle 23 that supports the wheel 60 for direct movement up and down directly on the components below the gate body 7. Therefore, in this case, the lower component of the gate body 7 or a part thereof is
7 or functions as a guide member for supporting the overturn prevention wheel 60 so as to be vertically movable.

[0070]

According to the present invention, a steady rest wheel 17 for rolling on the ground 1 side is provided below the gate body 7 which expands and contracts in the opening and closing direction along the ground 1 side so as to be vertically movable. Beside
When the gate body 7 is in the predetermined state, the steady rest engaging member 19 is provided so that the steady rest wheel 17 can be engaged and disengaged in the opening and closing direction of the gate body 7, so that there is no need to directly operate by hand. The swing can be easily and reliably stopped and released by opening and closing the main body 7.

Further, under the gate body 7 having one end fixed and extending and contracting in the opening and closing direction along the ground 1 side, an overturn prevention wheel 60 for rolling on the ground 1 side is provided so as to be vertically movable. On one side, when the gate body 7 is in a predetermined state, the overturn prevention wheel 60 is removably engaged in the opening and closing direction of the gate body 7 to prevent the inside and outside of the gate body 7 from overturning. Since the preventive engagement member 61 is provided, it is not necessary to directly operate it manually, and the opening and closing of the gate body 7 can easily and reliably prevent the gate body 7 from falling and release.

[Brief description of the drawings]

FIG. 1 is a front view of a hanging telescopic gate showing a first embodiment of the present invention.

FIG. 2 is a side view of a main part of the hanging telescopic gate showing the first embodiment of the present invention.

FIG. 3 is a front sectional view of a main part of the hanging telescopic gate showing the first embodiment of the present invention.

FIG. 4 is a partially broken plan view of a main part of the hanging telescopic gate showing the first embodiment of the present invention.

FIG. 5 is a front view of a folding telescopic gate showing a second embodiment of the present invention.

FIG. 6 is a plan view of a folding telescopic gate showing a second embodiment of the present invention.

FIG. 7 is a plan view of a main part of a folding telescopic gate showing a second embodiment of the present invention.

FIG. 8 is a front sectional view of a main part of a folding telescopic gate showing a second embodiment of the present invention.

FIG. 9 is a cutaway perspective view of a main part of a folding telescopic gate showing a second embodiment of the present invention.

FIG. 10 is a front view of a taxiing type telescopic gate showing a third embodiment of the present invention.

FIG. 11 is a side view of a main part of a taxiing type telescopic gate showing a third embodiment of the present invention.

FIG. 12 is a partially broken plan view of a main part of a taxiing type telescopic gate showing a third embodiment of the present invention.

FIG. 13 is a front view of a taxiable telescopic gate showing a fourth embodiment of the present invention.

FIG. 14 is a front sectional view of a main part of a taxiing type telescopic gate showing a fourth embodiment of the present invention.

FIG. 15 is a plan sectional view of a main part of a taxiing type telescopic gate showing a fourth embodiment of the present invention.

FIG. 16 is a perspective view of an essential part of a taxiing type telescopic gate showing a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Ground 7 Gate body 17 Steady-stop wheels 19 Steady-stop engaging tools 60 Wheels for preventing fall 61 Engaging tools for preventing fall

Claims (2)

[Claims] 1. A steady rest wheel (17) that rolls on the ground (1) side is provided below a gate body (7) that expands and contracts in the opening and closing direction along the ground (1) side, and is vertically movable. On the ground (1) side, when the gate body (7) is in a predetermined state, the steady rest wheel (17)
Is provided with a steady rest engaging member (19) which is removably engaged in the opening and closing direction of the gate body (7). 2. A fall prevention wheel (60) that rolls on the ground (1) side is provided below a gate body (7) that is fixed at one end and expands and contracts in the opening and closing direction along the ground (1) side. It is provided so as to be able to move up and down, and on the ground (1) side, when the gate body (7) is in a predetermined state, the overturn prevention wheel (60) is detachably engaged in the opening and closing direction of the gate body (7). A fall prevention device for a telescopic gate, further comprising a fall prevention engagement member (61) for preventing the gate body (7) from falling inward and outward.